1953 – Born in Ballinasloe, County Galway on the 11th of March.
1976 – She graduated with a Bachelor of Arts in Modern Studies and for a brief time was a secondary school teacher at Castleknock College in Dublin.
1977 – She came to the attention of Fianna Fáil leader Jack Lynch and stood unsuccessfully as a Fianna Fáil candidate in the general election.
1979 – Harney had her first electoral success when she was elected to Dublin County Council.
1981 – She was successfully elected to the Dáil in the general election for Dublin South West.
1985 – She was expelled from the party after voting in favour of the Anglo-Irish Agreement.
– She was expelled from the party after voting in favour of the Anglo-Irish Agreement.
1989 – The Progressive Democrats entered into a coalition government with Haughey’s Fianna Fáil party.
1992 – She served in this position until the party withdrew from government.
1993 – In February, Harney was appointed deputy-leader of the Progressive Democrats, becoming party leader in October of that year.
1997 – General election and lengthy negotiations the Progressive Democrats entered into coalition government with Fianna Fáil.
2001 – In December, Harney used a Government plane which was 50% funded by the European Commission to travel to County Leitrim to open a friend’s off-licence in Manorhamilton.
2002 – General election Harney led the Progressive Democrats.
2006 – In March, 16 months after she took office as health minister, the INO claimed that a record number of 455 people were waiting on hospital trolleys on one day
– In May, the Irish Nurses Organisation unanimously passed a motion of no confidence in Mary Harney.
– In July, Ireland on Sunday reported that Mary Harney’s mother, Mrs Sarah Harney, jumped a queue of two emergency cases to receive hip surgery at The Adelaide and Meath Hospital in Tallaght.
– On the 7th of September, Mary Harney announced that she was resigning as leader of the Progressive Democrats and that she would remain leader until a successor was chosen.